Seiko Cal. 6649 - 658

The 6649-658 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-ad1822509d98]

Also known as: UFO, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1966

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